Because Kubernetes is a managed service, users do not have access to the masters or nodes to make configuration changes or updates to the underlying virtual machine. This intended to maintain a level of supportability and stability for our Kubernetes service. We understand that this may cause a few issues with underlying dependencies for certain containerized workloads. We do plan on re-evaluating our node images from time to time so the packages and capabilities included in the node images are subject to changes/updates based on customer use cases.